Re: keyboard backlight max_brightness bug on Dell Latitude E6410

["Pali Rohár" <pali.rohar@gmail.com>]

On Monday 02 October 2017 13:06:46 Mario.Limonciello@dell.com wrote:
> > -----Original Message-----
> > From: Pali Rohár [mailto:pali.rohar@gmail.com]
> > Sent: Monday, October 2, 2017 6:53 AM
> > To: Andy Shevchenko <andy.shevchenko@gmail.com>
> > Cc: Gabriel M. Elder <gabriel@tekgnowsys.com>; Gabriele Mazzotta
> > <gabriele.mzt@gmail.com>; Limonciello, Mario <Mario_Limonciello@Dell.com>;
> > Darren Hart <dvhart@infradead.org>; Andy Shevchenko <andy@infradead.org>;
> > platform-driver-x86@vger.kernel.org; linux-kernel@vger.kernel.org
> > Subject: Re: keyboard backlight max_brightness bug on Dell Latitude E6410
> > 
> > On Friday 29 September 2017 18:19:59 Andy Shevchenko wrote:
> > > >> FYI, latest update and info relating to
> > > >> https://bugzilla.kernel.org/show_bug.cgi?id=196913
> > >
> > > Quick solution is to apply DMI to that.
> > 
> > It is only the Dell Latitude E6410 affected?
> > 
> > Mario, do you have any information about that API from Dell?
> > 
> > --
> > Pali Rohár
> > pali.rohar@gmail.com
> 
> Pali,
> 
> I believe this particular API shouldn't have changed over generations, so it's 
> likely something that needs to be quirked for that generation.  
> I haven't had a chance to check on this yet in detail though.
> For now could you guys quirk this one and if I find out there was something
> more systemic we can undo the quirk and do something more broad.
> 
> Thanks,

Ok! Gabriel, can you provide us your DMI information about your machine?

They are included in following files:
/sys/class/dmi/id/sys_vendor
/sys/class/dmi/id/product_name

Beware that they may contain whitespace characters and it is important.

-- 
Pali Rohár
pali.rohar@gmail.com